Water Heater Temperature Valve

Gas water heaters have a setting knob that can be turned to adjust the temperature.

Water heater temperature valve.

A tempering valve is an adjustable 2 inlet mixing valve which is temperature activated and used to moderate a hot water flow by mixing the hot water with cold water to achieve 50 c 122 f. Rheem protech 5 1 4 in. Free delivery with 45 order. Most gas control valves have a knob with various labels such as a b c on them.

The temperature and pressure relief valve tpr valve opens to release pressure buildup in the water heater when the temperature or the pressure get dangerously high preventing a possible explosion. Long shank water heater temperature and pressure relief valve model sp12575b 16 19 16 19. In most cases here s what each label means. How to set temperature on a gas water heater.

They automatically mix the correct amount of hot water coming out of the water heater with cold water to help maintain a safe water temperature for washing and showering. 2 drain the water from the tank until the water level is below the valve s location. Fixing a sticky t p valve. A water heater that periodically discharges hot water and steam from the t p valve may be set to a water temperature that is too high.

This valve allows water or steam to escape from the water heater if the temperature or pressure gets. But if the termination of the piping is not readily visible such as if it is located under the house the water will continue to drain until the homeowner gets an amazing electric or gas bill and goes searching for the reason. Close the shutoff valve on the cold water inlet line that fills the water heater. The temperature delivered is set by local building codes.

Set your store to see local availability. Make sure that the water temperature setting is in the normal recommended range about 120 degrees f or no more than about 150 degrees f. Rheem protech 4 1 4 in. Here s how to replace a water heater temperature pressure relief valve.

Mixing valves 154 products mixing valves adjust the temperature of the water that comes out of the hot water heater before it reaches the faucet. 1 shut off the cold water to the water heater and gas or electricity that heats the water heater. A buildup of mineral salt rust and corrosion can cause a tpr valve to freeze up and become nonoperational. If the water heater thermostat fails to turn off at its temperature setting and continues to heat the water indefinitely the tpr valve will open and let the overheated water out.

Water heaters come equipped with a temperature and pressure relief valve also known as a tprv. Different brands of gas water heater control valves may have different labels.